x = int(input())
if 400 <= x < 600:
    print(8)
elif 600 <= x < 800:
    print(7)
elif 800 <= x < 1000:
    print(6)
elif 1000 <= x < 1200:
    print(5)
elif 1200 <= x < 1400:
    print(4)
elif 1400 <= x < 1600:
    print(3)
elif 1600 <= x < 1800:
    print(2)
elif 1800 <= x < 2000:
    print(1) x = int(input()) x int(input()) int input() input if 400 <= x < 600:
    print(8)
elif 600 <= x < 800:
    print(7)
elif 800 <= x < 1000:
    print(6)
elif 1000 <= x < 1200:
    print(5)
elif 1200 <= x < 1400:
    print(4)
elif 1400 <= x < 1600:
    print(3)
elif 1600 <= x < 1800:
    print(2)
elif 1800 <= x < 2000:
    print(1) 400 <= x < 600 400 <= x 400 x 600 print(8) print 8 elif 600 <= x < 800:
    print(7) 600 <= x < 800 600 <= x 600 x 800 print(7) print 7 elif 800 <= x < 1000:
    print(6) 800 <= x < 1000 800 <= x 800 x 1000 print(6) print 6 elif 1000 <= x < 1200:
    print(5) 1000 <= x < 1200 1000 <= x 1000 x 1200 print(5) print 5 elif 1200 <= x < 1400:
    print(4) 1200 <= x < 1400 1200 <= x 1200 x 1400 print(4) print 4 elif 1400 <= x < 1600:
    print(3) 1400 <= x < 1600 1400 <= x 1400 x 1600 print(3) print 3 elif 1600 <= x < 1800:
    print(2) 1600 <= x < 1800 1600 <= x 1600 x 1800 print(2) print 2 elif 1800 <= x < 2000:
    print(1) 1800 <= x < 2000 1800 <= x 1800 x 2000 print(1) print 1 x = int(input()) int(input()) x
x = int(input())
if 400 <= x < 600:
    print(8)
elif 600 <= x < 800:
    print(7)
elif 800 <= x < 1000:
    print(6)
elif 1000 <= x < 1200:
    print(5)
elif 1200 <= x < 1400:
    print(4)
elif 1400 <= x < 1600:
    print(3)
elif 1600 <= x < 1800:
    print(2)
elif 1800 <= x < 2000:
    print(1)